Scouring device



l 1956 J. E. FRIES 2,761,259

SCOURING DEVICE Filed Aug. 17, 1954 4 INVENTOR JOHN E. FRIES ATTORNEY United States Patent SCOURING DEVICE John E. Pries, Washington, D. C. Application August 17, 1954, Serial No. 450,368 4 Claims. (Cl. 51-205) The present invention relates to a scouring device, and more particularly to a scouring device having an abrading stone made of Carborundum, or the like. It is recognized that there are prior art patents which generally teach scouring devices. Attention is directed to United States Patent No. 1,931,718, as an example.

The scouring device of the present invention is a device capable of withstanding heavy use and contact with hydrochloric acid without causing a separation of the Carborundum scouring stone from its handle.

An object of the present invention is to provide a scouring device to speed up the removal of mortar, mortar smear and stains from face brick with muriatic acid mixed with water and applied to the brick wall with a long handle brush, comprising; an abrading stone composed of bonded silicon carbide and provided with a plurality of spaced apart recesses in one face thereof; an elongated handle; said handle having a plurality of apertures in one end portion thereof substantially similar in number, shape, size, and distribution with reference to the recesses in said one face of said stone; said handle having an opening in the other end portion thereof; a

layer of heavy adhesive binding the recessed face of the said stone to the apertured portion of said handle with said adhesive entering said recesses; and said adhesive being capable of withstanding hydrochloric acid Without substantial deterioration of its adhesive properties.

Yet another object of the present invention is to provide a scouring device comprising; an abrading stone; an elongated handle; and said abrading stone being secured to one end portion of said elongated handle with an adhesive capable of withstanding hydrochloric acid without substantial deterioration of its adhesive properties.

Other and further objects of the present invention will be apparent from the following description thereof, and from the claims appended thereto.

In the drawing, wherein like numerals refer to like or corresponding parts throughout the several views:

Figure 1 is a bottom plan view of the scouring device embodying the features of the present invention, with parts broken away;

Figure 2 is a sectional view taken along the line 2--2 of Figure 1 in the direction of the arrows;

Figure 3 is a sectional view taken along the line 3-3 of Figure 2 in the direction of the arrows; and

Figure 4 is a perspective view of a part of the handle showing the disposition of the recesses in the upper face thereof.

The present invention generally embraces a scouring device used to speed up the removal of mortar, mortar smear and stains from face brick, and comprises an abrading stone which may be composed of bonded silicon carbide and is provided with a piurality of spaced apart recesses 11 in one face thereof, which recesses 11 are aligned with four in a row, and with three rows of recesses. The upper edge portions of stone 10, which edges are transverse the handle hereinafter mentioned, are beveled as at 10a to provide a surface area which wears See down evenly with no chipping. The scouring device of the present invention also includes an elongated handle 12 which may be made of any desired material such as wood, metal, plastic, or the like, and which has the side edges thereof fluted, as at 13, to provide a better hand gripping surface. The handle 12 is further provided at one end portion thereof with an opening 14 which fits over a nail, hook, or the like, so that the scouring device may be stored when not in actual use.

The other end portion of the handle 12, which has been indicated by the numeral 15, is provided with a plurality of apertures 16 extending therethrough, which apertures 16 are preferably similar in number, shape, size and distribution with reference to the recesses 11 which appear in a face of the abrading stone 10. There are three rows of apertures 16, with four apertures in each row.

As best shown in Figure 2 of the drawing, the abrading stone 10 is bonded or secured to the end portion 15 of handle 12 by means of a layer of heavy adhesive 17 which enters into the recesses 11 and apertures 16, as well as being disposed between the adjacent faces of the abrading stone 10 and the end portion 15 of handle 12.

The disposition of the plurality of recesses 11 and the plurality of apertures 16 so that they are substantially similar in number, shape, size and distribution, is an important feature of the present invention as it permits the adhesive 17 to complete a firmer bond between the abrading stone 10 and the handle 12. The adhesive 17 firms up more rapidly to give a quicker and better bond when air reaches it. The apertures 16 permit air to contactedhesive 17 therein to give a firm bond. This is important as the scouring device receives rough treatment during the cleaning operation.

Another very important feature of the present invention is the use of an adhesive 17 which is capable of withstanding hydrochloric or muriatic acid without substantial deterioration of its adhesive properties. In cleaning a building, it is the common practice to use water, sand and hydrochloric acid as the cleaning agent. In some instances, depending upon the brick being cleaned, only hydrochloric acid and water are used. In other instances, depending up the composition of the brick being cleaned, one can only use sand and water.

However, the scouring device of the present invention can be used under all circumstances, whether thebuilding is being cleaned with water, sand, and hydrochloric acid, or any combination of these cleaning ingredients, it being understood that such surfaces as marble or tile should not be cleaned with the Carborundum stone as it would scratch these surfaces.

Referring to Figures 2 and 4 of the drawing, attention is directed to the fact that the elongated handle 12 is bent at 18, intermediate the ends thereof, and preferably at a portion adjacent the section 15 of handle 12 which carries on the upper face thereof the plurality of spaced apart apertures 16. The bend 18 in the handle 12 is important to place the major portion of the handle 12 in a different horizontal plane with reference to the abrading stone 10, so that the handle 12 may be gripped by the user in such a manner that the abrading stone 10 can do its business without any danger of the hands of the user being scraped or torn during the abrading operation. The bend 18 in the handle 12 is also important as it permits the abrading stone 10 to be worn down practically to the adhesive 17 without detracting from the usability of the scouring device.

The device of this invention may be also used to scale metal particles off of ships, or the like, or generally as an all-purpose scouring device, having in mind that in some instances the device cannot be employed where it Will scratch or mar a surface.

It is preferred to employ an abrading stone which is el n ate h n e;

\to the portion of said assum s; n sa I inghydrochloric acid Without substantial deterioration of substantially square in configuration, and having the sides tltstss awesomely tw i ches w t depth approximately one and one-half inches. It is preferred to use a handle having an overall length of approximately p aeinshq Biwrsisrredta emp oy -hcavy ad which is a tsv ysu WP? me a? cont n ng r bber, r s n forcing agents. .As an example, attention is vdirected to h severa PlfPQSfi adh siv .sold by th Miracl Ad sivescorporation under the name, Miracle Brand. Generally, any'adhesive which is of the solvent type mastic rnayi beemployed in the practice of ,theinvention butthe adhesive preferably should be acid resistant, particularly t9 hvdr sh c as d- Qther rnqdific ions of the present invention will v,be apparent to those lled in the art without departing from .the d 'cr ipt ion there f, and it is therefore desired to be ,iitnits on y by th scop of th appended vcla ms.

Whati s a ms i 1. A scouring device comprising; an abrading stone composed of bonded silicon carbide and provided with a plurality of spaced apart recesses in one face thereof; an

said handle having a plurality of apertures in one end portion thereof substantially similar in 1 u 1mber, shape, size and distribution with reference to the recesses in said one face of said stone; said handle having an aperture in the other end portion thereof; a layer of heavy adhesive binding the recessed face of the said stone handle having said plurality of adhesive entering said recesses and adhesive being capable of Withstandapertures with said its adhesive properties.

2. A scouring device comprising; an abrading stone cornpos ed of bonded silicon carbide and provided with a plurality of spaced apart recesses in one face thereof; an elongated handle having fluted side edge portions to provide 'a better gripping surface; said handle having a plurality of apertures in one end portion thereof substantially similar in number, shape, size and distribution With reference to the recesses in said one face of said stone; said elongated handle being bent intermediate the ends thereof at a portion adjacent said apertures in one portion .thsrss sai handle having .annpeni si -the o h end portion thereof; a layer of heavy adhesive binding the recessed face of the said stone to the portion of said handle having said plurality of apertures with said adhesive entering said recesses and apertures; and said adhesive being capable of withstanding hydrochloric acid without substantial deterioration of its adhesive properties- 3. A scouring device comprising; an abrading stone composed of bonded silicon carbide and provided with a plurality of spaced apart recesses in one'face thereof; an elongated handle; said handle having a plurality of apertures in one ,end portion thereof substantially similar in number, shapefsiz'e and distribution with reference to the recesses in said one face of said stone; said handle having an opening in the other end portion thereof; and a layer of heavy adhesive binding the recessed face of the said stone to the aperturedportion of said handle having .said plurality of apertures .Wjth said adhesive entering said recesses .and apertures.

.4. A scouring device. comprising; an abrading stone composed .of bonded silicon carbide and provided with a plurality of spaced apart recesses in one face thereof; ,anelongated handle; said handle having a plurality of apertures in .one end portion thereof substantially similar in number, shape, size, and distribution with reference .to the recesses in said one face of said stone;

a layer of heavy adhesive binding the recessed face of the said stone to the apertured postion of said handle with said adhesive entering said recesses and apertures, and said adhesive being capable of withstanding hydrochloric .ac'id without substantial deterioration of its adhesive properties.

R ferees flie in t fi of hi pa ent .UNITED STATES PATENTS 129,103 Clitfton July 16, 1 872 1,931,718 Chorrnann Oct. 24, 1933 FOREIGN PATENTS 105,293 Switzerland June 2, 19-24 

